Finished off a fixture plate for my 3D printed bridgeport conversion (http://imgur.com/gallery/ZoPkKVp) , hopefully this makes a big difference to the speed / accuracy I can get on 2 sided jobs! :
Multiple Part Workholding Fixtures - PAWS Workholding
Fixture Plates for CNC Machines - Martin Trunnion Tables
4″ x 10″ Mill Tooling Plate – Sherline Products
HAAS® CNC Compatible Subplates - Tosa Tool
What CNC Modular Fixtures Do and Why You Need Them
Fixture Plates and Why You Should Use Them
The Advantages of Using a Fixture Plate on Your CNC Machine